Finding the Fourth Proportional to 221,617.18, 307,896.36 and 218,959.96
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Solution
The fourth proportional to 221,617.18, 307,896.36 and 218,959.96 is: 304,204.64
Step by Step Solution
- Step 1: Write the proportion equation
221,617.18 : 307,896.36 = 218,959.96 : x - Step 2: Convert to fraction form
221,617.18/307,896.36 = 218,959.96/x - Step 3: Cross multiply
221,617.18x = 307,896.36 × 218,959.96 - Step 4: Simplify right side
221,617.18x = 67,416,974,669.75 - Step 5: Solve for x
x = 67,416,974,669.75/221,617.18 - Step 6: Final answer
x = 304,204.64
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.